Laminate employing liquid resistant film and two sided sheet
CA 2280640 A1 · Owner: Premark Rwp Holdings, Inc. · Inventors: Stolarski, Victoria Lynn; Williams, Joel Lane; Marshall, Donald Murray
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laminate panel having desired characteristics even though the materials having these, desired characteristics are not compatible in at least one aspect is , disclosed . One of the, substances having the desired characteristics may be moved away from the other substance, and a different substance compatible with the substances may be used between the two, substances. For example, the laminate panel includes a liquid impermeable layer that, substantially prevents the penetration of moisture. The panel also includes a layer of a, balancing substance disposed close to the liquid impermeable layer to balance another layer of, the laminate panel. A kraft paper sheet coated with the …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed August 24, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 24, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.